Improvement in sawing-machines



JOHN-o. HouGHf |mp-r,.ov ement in Sawing Machines.

y No. 121,369. Patented Nov. 28, 18711.

UNITED STATES JOHN O. HOUGH, or DE WITT OOUNTY, ILLINOIS.

IMPROVEMENT IN SAWING-MACHINES.

Specication forming part of Letters Patent No. 121,369, dated November 28, 1871.

To all whom t may concern:

Be it known that I, JOHN O. HOUGH, of De Witt county, State of Illinois, have invented certain Improvements in Sawing-Machines, of which the following is a specification:

The nature of my invention relates to a machine for sawing wood; and the invention consists in the arrangement of the parts in a compact and convenient manner, whereby the operrator may drive the saw, feed the wood thereto &c., without changing his position, all as hereinafter fully described.

Figure l is a perspective view of a machine embodying my invention. Fig. 2 is a sectional view of Fig. l on the line x rc.

` A A represent a rectangular frame, from which projects at right angles, near one end thereof, the shorter rectangular frame B. The frames A B may be supported on legs c a c c ay c, or any other suitable devices. C is a yfshaft, with bearings in the frame B B. D is a drive-wheel on one end of the shaft C. E is a crank on the shaft C. G is a crank-shaft, having bearings in standards g g. H is a pinion on the end of the crank-shaft G, and gearing with the drive-wheel D. I is the fly-wheel. J is the saw, having a shank, j, at one end, by which it is connected with the crank of the shaft G. The cuttingedge of the saw J is curved longitudinally, as shown, in order to keep it in contact with the wood against the oscillating motion produced by the crank G. K K are guides for the saw J, and are attached at their lower ends to the frame A A. L is a lever, pivoted on the standard l, and one end resting beneath the shank j of the saw J, the other end being convenient to the crank E. M is a rackbar with teeth my m, with which the handle of the lever L engages when it is thrown down, for the purpose of elevating and holding up the saw J. O O is a carriage or rectangular frame, the side pieces of which are united by cross-pieces P P P P, and rest immediately over the side pieces of the frame A A. Q Q are rack-bars attached to the sides of the frame pieces O O, and extending near the length thereof. The teeth or cogs of the rack-bars Q Q extend below the sides of the frame pieces 0 O, and form lateral guides for the carriage. R is a shaft, having bearings in the side frame pieces A A. S S are pinion-wheels on the shaft R, engaging with the rack-bars Q Q. T is a crank on the end of the shaft It, and convenient to the crank E. U U U U are pulleys, the axial bolts of which have bearings in and the peripheries of which project above the upper side of the side frame pieces A A, forining a support for the carriage O. V is a dog, with teeth on its under side for holding the wood in position on the frame or carriage O. Alt is hinged at one end to the standard W, and provided at the other with a swinging notched plate, lU, which engages with a latch, t', projecting' from the side of the frame-piece A, convenient to the crank E.

In operation, the wood is placed on the can riage O, and secured thereon by the dog V, the saw being held up by the lever L. By turning the crank T the wood may be brought beneath the saw in the' desired position. The lever L is then released, and the saw drops to the wood, when, by turning the crank E, it may be sawed in two. The saw may then be elevated by the lever L, and the wood brought into position for sawing oii' another bolt by simply turning the crank T.

It will be seen that the operator may operate all parts of the machine while standing in his position at the crank E.

What I claim as my invention is- The frames A A and B B, constructed as de scribed, drive-wheel I), pinion H, crankshaft G, and saw J, when arranged to operate with the carriage O, rack-bars Q Q, pinions S S, crank T, pulleys U U U U, dog V, and lever L, substantially as described, and for the purpose set forth.

JOHN O. HOUGH.

Witnesses:

A. HAYNIE, LEE SMITH. 

